Instructions for use of the herbicide Corsair, application rates and analogues

Contact herbicides inhibit the above-ground parts of weeds, so shoots and leaves are evenly sprayed with them. Contact substances include bentazone, the main active substance in the Corsair herbicide. The drug is used on crops of cereals, legumes, industrial crops, and forage crops to control dicotyledonous annual weeds.

Composition, release form and purpose of the herbicide Corsair

Corsair is a contact-type herbicide effective against dicotyledonous weeds. It is used in areas sown with cereals, legumes, forage, and industrial crops, and copes with weeds that are resistant to MCPA and chemicals based on 2,4-dichlorophenoxyacetic acid.

The active substance is bentazone. The drug is available in the form of a concentrated, water-soluble liquid, bottled in 10-liter canisters. Solution concentration – 480 g/l. Manufacturer: Russian company “August”.

Mechanism of action of the product

Bentazone enters plant tissues through the surface of leaves and stems. Inhibits photosynthesis reactions in cells. As a result, the green mass dies.

Impact speed

Noticeable signs of dying are observed after 3-4 days. Complete extinction of weeds on the site occurs in 10-12 days.

Period of protective action

The treated area remains clean until the second wave of weeds in the season.

Main advantages and disadvantages

Corsair herbicide is popular among farmers because it has the following advantages:

• does not have a toxic effect on cultivated plants, regardless of weather conditions;
• effective against almost all types of dicotyledonous weeds;
• does not imply strict deadlines for application;
• can be used on cereal crops with the inclusion of forage grasses;
• does not cause immunity in weed species.

Farmers do not note any particular disadvantages when using the Corsair herbicide.

Consumption rate

The application rate is determined by which crop is being treated against weeds.

The rice plantation is processed when the cereal produces 2 leaves, and the weeds produce 3-5. To prevent the herbicide solution from being washed off from the surface of the leaves, the water level in the flood field is reduced to 1-2 cm before treatment.

2 days after spraying, the field is again filled with water as standard.

Preparation of the working solution and instructions for its use

Treatment with Corsair herbicide is carried out by spraying. The optimal time for work is for the weeds to have 3-5 true leaves. During the growing season, a single treatment is acceptable. The consumption of the working solution is 200-300 liters per hectare of sown area.

The working solution is made before performing work. Before opening the canister, shake the concentrate thoroughly. The tank of the spraying device is filled a quarter with water, and the required amount of concentrate is poured into it. The liquid is stirred well. While stirring, add water until the volume is full.

Prepare the working solution in a protected area. After filling the tank, the area is cleaned.

Treatment is carried out at an air temperature of 10-25 °C and a wind speed of no more than 5 m/s. In cool and windy weather, the herbicide is less effective. Peas and some other cultivated species are more susceptible to the effects of the drug, so spraying is carried out on a cloudy day at air temperatures up to 20 °C. Corsair should not be used if there is a high risk of frost at night.

Precautionary measures

Herbicide Corsair belongs to chemicals of the 3rd class of danger to humans, that is, it is a moderately toxic substance.Therefore, you cannot begin to cultivate the sown area without using standard eye, respiratory system, and skin protection.

First aid for a chemical victim:

• the substance gets on the skin - wipe it off with a piece of cloth or cotton wool, wash the area of ​​the body with soapy water;
• into the eyes - spread the eyelids with your fingers and gently rinse the eyeballs with plenty of water;
• the herbicide is accidentally swallowed - rinse the mouth with water, induce vomiting, then immediately take activated carbon (1 g of the drug per 1 kg of the victim’s weight), wash it down with a large volume of water.

After first aid measures, even if you feel normal, you should visit a medical specialist.

For fish, hazard class 4 is a low-hazard substance. Therefore, the herbicide can be used to treat crops in the sanitary zone of reservoirs belonging to a fish farm.

Phytotoxicity, crop tolerance

If you follow the instructions and rules of use, phytotoxicity is excluded.

Do not treat crops that are depressed due to pathologies, unfavorable weather conditions and other negative factors.

Possibility of resistance

The emergence of herbicide resistance in weeds is excluded.

Is it compatible with other products?

Corsair can be combined in a tank with neutral or alkaline chemicals. Mixing with drugs that have an acidic composition is unacceptable.

Storage conditions of the drug

Corsair herbicide is stored in the canister in which it was purchased. For storage, choose a separate place where the chemical will be harmless to natural objects. The herbicide does not deteriorate at temperatures from -5 to +40 °C. Shelf life - 3 years if the canister is not depressurized.

Are there any analogues?

The drug Corsair has analogues - contact herbicides based on bentazone:

• Buffalo;
• Bentogram;
• Bentasil;
• Granbaz;
• Bazagran;
• Bentus.

All of these drugs are effective against dicotyledonous weeds. They are well tolerated by cultivated vegetation, characterized by a wide spectrum of action, and are used on crops of cereals, legumes, and forage plants.